Meletios A. Dimopoulos, Meral Beksac, Lotfi Benboubker, Huw Roddie, Nathalie Allietta, Esther Broer, Catherine Couturier, Marie-Andrée Mazier, Ralf Angermund and Thierry Facon (2013) “Phase II study of bortezomib–dexamethasone alone or with added cyclophosphamide or lenalidomide for sub-optimal response as second-line treatment for patients with multiple myeloma”, Haematologica. Pavia, Italy, 98(8), pp. 1264-1272. doi: 10.3324/haematol.2013.084376.